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6.6.5
The inverter does not run.
Check
Possible cause
point
The terminals RDA and SE of the
Control
converter unit are not connected to the
circuit
terminals MRS (X10 signal) and SD of
the inverter respectively.
Parameter Inverter parameter settings are incorrect. Check for the inverter parameter settings.
6.6.6
Unable to write parameter setting
Check
Possible cause
point
Parameter write is disabled by the Pr.77
Parameter write selection setting.
Parameter
setting
The key lock mode is enabled by the Pr.161
Key lock operation selection setting.
6.6.7
A breaker trips.
Check
Possible cause
point
The wiring or installation is inadequate.
Main
An appropriate power supply voltage is
circuit
not applied.
6.6.8
The converter unit generates abnormal noise
Check
Possible cause
point
The fan cover was not correctly installed
Fan
when a cooling fan was replaced.
Countermeasure
Check for secure wiring and installation.
Countermeasure
Check the Pr.77 setting.
Check the Pr.161 setting.
Countermeasure
Check for secure wiring and installation.
Check if an appropriate power supply voltage is applied.
Countermeasure
Install the fan cover correctly.
Refer to
28
Refer to the
Instruction
Manual
(Detailed) of
the inverter.
Refer to
78
77
Refer to
28
—
Refer to
158
6. PROTECTIVE FUNCTIONS
6.6 Check first when you have a trouble
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